From: Mark Gaffney <markgaffney@mac.com>

Date: January 10, 2009 1:48:54 PM MST

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Re: Imaging Source camera on Astromart


Hi Alan, I notice you`re using a DMK 21B F04 for your Jupiter & Saturn images. I was looking at this option for a DMK camera here in Australia; http://www.yorkoptical.com.au/ProductMenus/TeleAccessories/tabid/49/CategoryID/333/List/1/catpageindex/2/Level/a/ProductID/2590/Default.aspx?SortField=UnitCost%2cProductName

It`ll certainly be a few months before I can actually buy one but what do you think? Have the 21B`s any advantages over these? By the way did you get any useful feedback from The Imaging Source yet on your "broken" DMK? 

On Sunday, January 11, 2009, at 04:31AM, "Alan Friedman" <alan@greatarrow.com> wrote:

Hi Mark and Ray,


Thanks for the nice words on my pictures... the good thoughts help  

brighten this long period of lake effect cloud cover over the eastern  

shores of Lake Erie.


On Jan 10, 2009, at 1:52 AM, Mark Gaffney wrote:


Hi Ray, You`re right Chris Go has got it all happening! I`ve  

marvelled at his images of the planets (particularly Jupiter) with  

the simplest of cameras. I`ve wondered why he hasn`t felt the need  

to upgrade to a 31 or 41 series TIS camera but given the results I  

guess he`s happy.







Chris is a very talented and dedicated guy located in a great place  

for planetary imaging.  His targets are primarily Saturn and Jupiter.  

The planets fit just fine on the small chip - there is no need for  

anything larger than 640x480. The wider field of view of the 31 and 41  

series cameras might reach an additional outlying moon or two, but the  

lower sensitivity from the smaller pixels in these cameras would be a  

handicap. The larger chips are nice for lunar and solar imaging  

though...


best regards,

Alan